/*
 * Copyright (c) 2002-2020 Manorrock.com. All Rights Reserved.
 *
 * Redistribution and use in source and binary forms, with or without 
 * modification, are permitted provided that the following conditions are met:
 *
 *   1. Redistributions of source code must retain the above copyright notice, 
 *      this list of conditions and the following disclaimer.
 *   2. Redistributions in binary form must reproduce the above copyright
 *      notice, this list of conditions and the following disclaimer in the
 *      documentation and/or other materials provided with the distribution.
 *   3. Neither the name of the copyright holder nor the names of its 
 *      contributors may be used to endorse or promote products derived from
 *      this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 
 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 
 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE 
 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 
 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 
 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 
 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 
 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 
 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 */
package cloud.piranha.cli;

import java.util.ArrayList;
import java.util.List;

/**
 * The Piranha Nano CLI.
 *
 * @author Manfred Riem (mriem@manorrock.com)
 */
public class NanoCli {

    /**
     * Stores the pattern.
     */
    private static final String PATTERN = "  %-10s: %s\n";
    
    private void cloud(List<String> arguments) {
        NanoCloudCli cli = new NanoCloudCli();
        cli.execute(arguments);
    }

    /**
     * Execute the Nano CLI.
     * 
     * @param arguments the arguments.
     */
    public void execute(List<String> arguments) {
        if (!arguments.isEmpty()) {
            ArrayList<String> list = new ArrayList<>();
            list.addAll(arguments);
            if (!list.isEmpty()) {
                list.remove(0);
            }
            switch (arguments.get(0)) {
                case "cloud":
                    cloud(list);
                    break;
                case "generate":
                    generate(list);
                    break;
                default:
                    usage();
                    break;
            }
        } else {
            usage();
        }
    }
    
    private void generate(List<String> arguments) {
        NanoGenerateCli cli = new NanoGenerateCli();
        cli.execute(arguments);
    }

    /**
     * Shows the usage.
     */
    private void usage() {
        System.out.println("usage: pi nano <command>");
        System.out.println();
        System.out.printf(PATTERN, "cloud", "Administer a Piranha Nano application on the cloud");
        System.out.printf(PATTERN, "generate", "Generate a Piranha Nano application");
    }
}
